EP3799236A1 - Teleskopische abstandsringanordnung für einen elektrischen installationskasten - Google Patents

Teleskopische abstandsringanordnung für einen elektrischen installationskasten Download PDF

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Publication number
EP3799236A1
EP3799236A1 EP20198067.9A EP20198067A EP3799236A1 EP 3799236 A1 EP3799236 A1 EP 3799236A1 EP 20198067 A EP20198067 A EP 20198067A EP 3799236 A1 EP3799236 A1 EP 3799236A1
Authority
EP
European Patent Office
Prior art keywords
installation box
electrical
electrical installation
ring member
ring assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20198067.9A
Other languages
English (en)
French (fr)
Inventor
Gireesh Nayak
Manohar Chikkanna
Richard Vicktorius
Shree Ganesh Narayanan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP3799236A1 publication Critical patent/EP3799236A1/de
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/12—Distribution boxes; Connection or junction boxes for flush mounting
    • H02G3/123—Distribution boxes; Connection or junction boxes for flush mounting in thin walls
    • H02G3/126—Distribution boxes; Connection or junction boxes for flush mounting in thin walls with supporting means for mounting on a single wall stud
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/086—Assembled boxes

Definitions

  • the present invention generally relates to a spacer ring assembly for installation boxes. More particularly the invention relates to a telescopic spacer ring assembly with telescopic mechanism for electrical installation box for adjusting the dimension of said electrical box while flush mounting said electrical installation box.
  • Installation boxes comprise of a distal end part provided with an essentially cylindrical compartment adapted for accommodating at least partially said electrical installation device i.e. electrical inserts.
  • the compartment of an electrical installation box has a predetermined dimension of recess per se, for accommodating electrical equipment and installation device.
  • the recess having dimensions across proximal end surface of said electrical installation box, which are larger than said external diameter of the essentially cylindrical compartment.
  • Installation boxes such as wall or ceiling boxes, of the above-mentioned type are widely used behind board walls or ceilings.
  • adjustable spacers of a few predetermined heights are used. These spacers are generally cylindrical spacer rings adapted to be inserted to various degrees into the cylindrical compartment of the installation box and thereby adjusting the level of installation.
  • the installation boxes are typically mounted on a support member, the spacers placed in the cylindrical compartment and adjusted to height, then a magnetic locating device is placed in them, and finally they are covered entirely when the wall or ceiling board is mounted.
  • the cylindrical shape of the compartment and the spacer makes it quite easy to uncover the installation box again when it is needed for the installation of an installation device such as a switch, a socket, a dimmer or the like which can also generally be referred as electrical inserts.
  • All the electrician needs to do is to locate the magnetic locating device using an appropriate seeker (e.g. a magnetic material or a magnet), and then drill a circular hole of a predetermined diameter corresponding to the dimension of the cylindrical mounting part and the spacer.
  • the magnetic locating device can then be removed for reuse in another installation, upon which the installation device may be mounted by inserting it partially through the hole into the spacer and securing it thereto, the spacer thus serving as a receptacle for the installation device.
  • the installation devices there is a desire to construct them so that they do not protrude too far over the mounting surface, this inter alia makes the installation devices less prone to destruction from impacts, as they are less likely to get hit, but it also improves the aesthetic appearance.
  • flush mounting necessitates that a larger part of installation device, i.e. of the part comprising the mechanic, electric and electronic parts, is located within the installation box.
  • the spacer ring assembly makes telescopic action inside the support member and thereby providing space for accommodating insert and ensures flush installation of the electrical installation box with lesser height of the aesthetics.
  • the present invention provides telescopic spacer ring assembly for an electrical installation box for flush installation on a wall, said electrical installation box having a threaded opening portion, wherein said telescopic spacer ring assembly comprises:
  • said second ring member comprising a ring collar member at a proximal end for butting with the wall from the front side for rigid fixation of said telescopic spacer ring assembly.
  • said second ring member is provided with guiding ribs at its inner circumferential area for alignment and fixation of said electrical inserts.
  • said first ring member comprises of fastener receiving slots for attaching insert mounting screws connecting said first ring member with said second ring member.
  • said telescopic spacer ring assembly is attached to the electrical installation box along with a support member and mounted on a wall, said support member facilitates additional support to the electrical installation box to withstand pull out forces.
  • a space relief is provided in said telescopic ring assembly for accommodating said support member, said space relief is of matching profile with mating surface of said support member.
  • said space relief is provided with two pairs of split holding clips at for accommodating various dimension of vertical screwing members to align the level of the electrical installation box, said split holding clips are adapted to removably attach with said support member.
  • said fixing spacer member is resilient in nature and adapted to assemble inside the inner circumference of said second ring member with compression force.
  • said fixing spacer member comprising guiding projection for mounting plurality of said electrical inserts.
  • the flat annular surface of said second ring member is provided with threaded receiving slots to attach screw members and adjusting the level of the electrical installation box from the wall by applying torsional force on said screw members.
  • the outer surface of the second ring member is provided with alternate planer surfaces to accommodate at least one spirit level for alignment of the telescopic spacer ring and said electrical inserts inside said electrical installation box.
  • invented telescopic spacer ring assembly (100) is attached with an electrical installation box (10) along with a support member (18) and a beam-fixing member (20) for flush installation on a wall.
  • the beam-fixing member (20) is provided with a horizontal support projection for additional support required for flush installation.
  • the support member (18) is kept attached with the electrical installation box (10) providing feedback force against any pushing or pulling force and also bearing the load of electrical inserts installed in the electrical installation box.
  • the telescopic spacer ring assembly (100) is of matching profile with the support member (18) and beam-fixing member (20) in order to assemble together and mounted such that the installment of the electrical installation box (10) would not be projecting out of the wall i.e. flush mounting/installation.
  • said telescopic spacer ring assembly (100) comprises a first ring member (102), a second ring member (104) and a fixing spacer member (106).
  • the first ring member (102) is adopted so as to be attached to the electrical installation box (10) at the threaded opening portion (36).
  • the second ring member (104) is of substantially larger diameter than said first ring member (102).
  • the second ring member (104) is 5 to 50%, or 5 to 25% larger in diameter than said first ring member (102).
  • the second ring member (104) is at least 10% larger in diameter than said first ring member (102).
  • the second ring member (104) is at least 20 or 25% larger in diameter than said first ring member (102).
  • the second ring member (104) is 5 to 50% larger in diameter than said first ring member (102).
  • a projection i.e. a collar member (112) of the second ring member (104) is abutting on the wall which provides robust support of the electrical installation box (10).
  • the fixing spacer member (106) is assembled with said second ring member (104) for fixation of multiple electrical inserts (12),
  • said first ring member (102) is secured with threaded opening portion (36) of said electrical installation box (10) and configured to adjust the dimension of the electrical installation box (10) for different thickness of boards (14) on the wall by telescopic action and avoid any gap creation in between.
  • the second ring member (104) is provided with flat annular surface (108) at its distal end for accommodating electrical inserts (12), said annular surface (108) is provided with oblong holes (110) of arcuate profile for aligning said inserts within the electrical installation box (110).
  • a typical electrical installation box (10) is depicted in figure 1 of the accompanying drawings, wherein the electrical installation box (10) is provided with plurality of stubs (24) and beam-fixing members (20) is attached for mounting on a beam (34). Two the similar types of electrical installation boxes (10) are adopted for docking with each other which is also illustrated in figure 1 .
  • the components comprise a support member (18), an electrical insert assembly having electrical inserts (12), a centerplate (30), rocker (28) and cover frame (26). These components are to be attached along the invented telescopic spacer ring assembly (100).
  • the electrical installation box (10) is to be fixed with a board (14) having a central hole of matching profile with the entry portion (32) of the electrical installation box (10).
  • said second ring member (104) is provided with a ring collar member (112) at a proximal end.
  • the collar member (112) is protruding from the said proximal so as to abut on the wall from the front side for rigid fixation of said telescopic spacer ring assembly (100).
  • the support member (18) holds the electrical installation box (10) robust from the back side of the board (14) and the collar member(1 12) is abut on the wall such that the board (14) is sandwiched between the support member (18) and the telescopic spacer ring assembly (100) ( figure 10(a) ).
  • Support member (18) creates support structure for telescopic spacer ring assembly (100) to align the box and creates no gap between components as mentioned above so that electrical insert (12) is not project in or outside.
  • the second ring member (104) is provided with guiding ribs (114) at its inner circumferential area for alignment and fixation of said electrical insert (12). The ribs also help to strengthen the structure of the second ring member (104) and its connection with the first ring member (102).
  • said first ring member (102) is attached with the second ring member (104) with screwing mechanism that also incorporates the telescopic mechanism of the first ring member (102) to align or adjust the dimension of the installation box.
  • the inner circumferential surface of the first ring member (102) comprises fastener receiving slots (118) for attaching insert mounting screws (50-1) connecting said first ring member (102) with said second ring member (104). Torsional forces are to be applied on the insert mounting screws (50-1) in order to actuate the telescopic mechanism.
  • the flush mounting of the electrical installation box (10) is achieved by the invented telescopic spacer ring assembly (100) along with the support member (18), beam-fixing member (20) attached with the installation box.
  • Multiple dimensions of the beams (34) are taken care of by the beam-fixing member (20) that provides a robust fixation of the electrical installation box (10) with the beams (34).
  • the support member (18) holds the electrical installation box (10) from the inner side of the wall and provides additional support to withstand any push or pull forces.
  • the invented telescopic spacer ring assembly (100) takes care of the different dimensions of the boards (14) attached with the wall and aligns the electrical inserts (12) inside the electrical installation box (10).
  • a support member (18) has been attached with installation box (10).
  • said telescopic spacer ring assembly (100) is attached to the electrical installation box (10) along with a support member (18) and mounted on a wall, said support member (18) is attached with the box by box clipping mechanism (38) and thereby facilitates additional support to the electrical installation box (10) to withstand pull out forces.
  • a space relief (120) is provided in said telescopic ring assembly ( figure 3(a) ) for accommodating said support member (18), said space relief (120) is of matching profile with mating surface of said support member (18).
  • said space relief (120) on the telescopic spacer ring assembly (100) is provided with two pairs of split holding clips (122) at for accommodating various dimensions of vertical screwing members (50-2) to align the dimension of the electrical installation box (10), said split holding clips (122) are adapted to removably attach with said support member (18).
  • the vertical screwing members (50-2) are of preferably larger dimension to cover relatively more range of alignment and adjusting the dimension.
  • the split holding clips (122) can be made of resilient material for press fitting different diameters of vertical screwing member (50-2).
  • the fixing spacer member (106) is explicitly shown in figure 5 . While assembling, said fixing spacer member (106) is compressed and fixed at the inner circumferential area of the larger ring i.e. second ring member (104).
  • the fixing spacer member (106) is resilient in nature and adapted to shrink and expand according to the forces applied to it.
  • the fixing spacer member (106) is provide with guiding projection (124) in its inner circumferential area for mounting plurality of said electrical inserts (12). If a coordinate system is considered, said fixing spacer member (106) can be mounted in X and Y directions as well as flip over from the butting surface of the first ring member (102).
  • the flat annular surface of said second ring member (104) is provided with threaded receiving slots to attach screw members (50-3) and adjusting the dimension of the electrical installation box (10) from the wall by applying torsional force on said screw members (50-3).
  • These screw members (50-3) are preferably shorter in dimension for easy mounting of the electrical inserts (12).
  • the application of the openings (110) of arcuate profile are provided in the annual surface of the second ring member (104) to align fixing frame (40) and electrical inserts (12) is illustrated in figures 7 and 8 of the accompanying drawings.
  • the electrical inserts (12) are attached with the fixing frame (40) and inserted inside the cavity i.e. entry portion (32) of the electrical installation box (10) and attached with multiple screws. While mounting if the fixing frame (40) is not horizontal then it can be rotated in a preferable direction to attain horizontal installation.
  • the openings (110) are of arcuate profile which facilitate easy and smooth rotation of the electrical inserts (112) and attain the state as depicted in figure 8 .
  • FIG. 9(a) when less thickness of board (14) is used then the first and second ring members (102,104) are very close each other.
  • the smaller ring i.e. first ring member (102) is kept fixed with the threaded portion (36) of the electrical installation box (10), whereas the second ring member (104) projects outside in order match the dimension of the wall and board (14) combined (also in figure 10(b) ).
  • the outer surface of the second ring member (104) is provided with alternate planer surfaces (130) (shown in figure 3(a) ) to accommodate at least one spirit level for alignment of the telescopic spacer ring assembly (100) and said electrical inserts (12) inside said electrical installation box (10).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
EP20198067.9A 2019-09-26 2020-09-24 Teleskopische abstandsringanordnung für einen elektrischen installationskasten Pending EP3799236A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN201931038873 2019-09-26

Publications (1)

Publication Number Publication Date
EP3799236A1 true EP3799236A1 (de) 2021-03-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20198067.9A Pending EP3799236A1 (de) 2019-09-26 2020-09-24 Teleskopische abstandsringanordnung für einen elektrischen installationskasten

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EP (1) EP3799236A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4187731A1 (de) * 2021-11-30 2023-05-31 Albrecht Jung GmbH & Co. KG Elektrisches/elektronisches installationsgerät und anordnung mindestens zweier solcher

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565276A (en) * 1968-09-27 1971-02-23 Norris Industries Adjusting ring for electrical floor boxes
DE4222656A1 (de) * 1992-07-10 1994-01-13 Abb Patent Gmbh Elektrische Steckdose
WO2003081054A1 (en) * 2002-03-27 2003-10-02 Daxtor Aps Expansion unit
EP1511144A1 (de) * 2003-09-01 2005-03-02 Legrand Einbaudose mit Montagering
EP1926192A1 (de) * 2006-11-24 2008-05-28 Capri-Codec SAS Gehäuse für Trennwand in Trockenbauweise, mit axial fixierten Laschen und axial verschiebbaren Außenstützen
EP2597743A1 (de) * 2011-11-23 2013-05-29 Schneider Electric Danmark A/S Installationskasten zur Montage an eine elektrische Installationsvorrichtung
NO336337B1 (no) * 2005-11-17 2015-08-03 Abb Oy Montasje- eller koblingsboks

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565276A (en) * 1968-09-27 1971-02-23 Norris Industries Adjusting ring for electrical floor boxes
DE4222656A1 (de) * 1992-07-10 1994-01-13 Abb Patent Gmbh Elektrische Steckdose
WO2003081054A1 (en) * 2002-03-27 2003-10-02 Daxtor Aps Expansion unit
EP1511144A1 (de) * 2003-09-01 2005-03-02 Legrand Einbaudose mit Montagering
NO336337B1 (no) * 2005-11-17 2015-08-03 Abb Oy Montasje- eller koblingsboks
EP1926192A1 (de) * 2006-11-24 2008-05-28 Capri-Codec SAS Gehäuse für Trennwand in Trockenbauweise, mit axial fixierten Laschen und axial verschiebbaren Außenstützen
EP2597743A1 (de) * 2011-11-23 2013-05-29 Schneider Electric Danmark A/S Installationskasten zur Montage an eine elektrische Installationsvorrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4187731A1 (de) * 2021-11-30 2023-05-31 Albrecht Jung GmbH & Co. KG Elektrisches/elektronisches installationsgerät und anordnung mindestens zweier solcher
DE102021131353A1 (de) 2021-11-30 2023-06-01 Albrecht Jung Gmbh & Co. Kg Elektrisches/elektronisches Installationsgerät und Anordnung mindestens zweier solcher
DE102021131353B4 (de) 2021-11-30 2024-02-29 Albrecht Jung Gmbh & Co. Kg Elektrisches/elektronisches Installationsgerät und Anordnung mindestens zweier solcher

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